No problem, we've got 8515 and 2427 to multiply
8515 × 2427 = 2427 × (8515)
+ 2427 × 5 that equals 12135
+ 2427 × 10 what gives us 24270
+ 2427 × 500 yielding 1213500
+ 2427 × 8000 what gives us 19416000

= 20665905
